12 comments

• 

  Ivan V.

  1 year ago

  So, this plugin only works with MySQL right? Are you considering supporting other DBs, like postgresql?
  
  Thanks.
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• 

  Scoundrel

  1 year ago

  I do not work with postgres, but patches are welcome :-)
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• 

  Ivan V.

  1 year ago

  I'm no expert at all on databases, but I'll see what I can do :)
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• 

  Chris

  1 year ago

  Why don't you just use the cookiestore in rails 2.0? That way you don't need to store sessions in the database at all!
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• 

  Matthias

  1 year ago

  the self.delete_old! method did not work for me. I changed it to:
  
  @@connection.execute "DELETE FROM #{table_name} WHERE UNIX_TIMESTAMP(updated_at)
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• 

  Matthias

  1 year ago

  < UNIX_TIMESTAMP(NOW()) - #{seconds}"
  
  Note the UNIX_TIMESTAMP around (updated_at) in first part of the comment
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• 

  Drew Blas

  1 year ago

  You mentioned turning off sessions from bot requests, but didn't mention how. Here's my method:
  
  [application.rb]
  # turn off sessions if this is a request from a robot
  session :off, :if => proc { |request| request.user_agentuser_agent =~ /\b(Baidu|Gigabot|Googlebot|libwww-perl|lwp-trivial|msnbot|SiteUptime|Slurp|WordPress|ZIBB|ZyBorg)\b/i }
  reply
• 

  Andrey

  1 year ago

  Of course, it's a little bit artificial case, but when session size exceed 70kb I become error (code 500). Log says that sql connection lost during update operation.
  After that application don't get back alive, until I delete session record.
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• 

  Eric

  1 year ago

  What about using MyISAM for the sessions table. Implications, like for instance, table locking during updates/additions?
  Unfortunately, my MySQL database was not compiled with InnoDB.
  reply
• 

  Eric

  1 year ago

  What would the impact be for using fast_sessions with MySQL and MyISAM tables as opposed to InnoDB (table vs. row level locking)? Any thoughts?
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• 

  Paolo Montrasio

  1 year ago

  There is a plugin called SmartSessionStore that does more or less the same and works also with PostgreSQL. I've been using it for almost an year in production with no problems at all.
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• 

  Andrew Watkins

  12 months ago

  We're using postgresql and actually ported it over, except for one problem: Postgresql does have crc32 as a function. You can kind of get there by either writing your own or installing the one with ltree. Postgresql does however have md5. What we did is setup tests against unique(md5_session_string, session_id), unique(crc32, session_id), and unique(md5_session_byte,session_id). The last one is a byte representation of the md5 hash. For random queries, the 1st two implementations ran at about the same speed, which was basically instantaneous. The byte one definitely showed a little lag, and so would not recommend it. Finally we created a stored procedure to actually handle the insert/update as postgresql doesn't have a "ON DUPLICATE KEY UPDATE". The question is whether or not this is faster than just indexing the session_id itself or is something screwy is going on where postgresql is optimizing against the hashed values.
  reply